include/asm-arm/apm.h

   1 /* -*- linux-c -*-
   2  *
   3  * (C) 2003 zecke@handhelds.org
   4  *
   5  * GPL version 2
   6  *
   7  * based on arch/arm/kernel/apm.c
   8  * factor out the information needed by architectures to provide
   9  * apm status
  10  *
  11  *
  12  */
  13 #ifndef ARM_ASM_SA1100_APM_H
  14 #define ARM_ASM_SA1100_APM_H
  15
  16 #include <linux/config.h>
  17
  18 #ifdef CONFIG_APM
  19
  20
  21 #define APM_AC_OFFLINE 0
  22 #define APM_AC_ONLINE 1
  23 #define APM_AC_BACKUP 2
  24 #define APM_AC_UNKNOWN 0xFF
  25
  26 #define APM_BATTERY_STATUS_HIGH 0
  27 #define APM_BATTERY_STATUS_LOW  1
  28 #define APM_BATTERY_STATUS_CRITICAL 2
  29 #define APM_BATTERY_STATUS_CHARGING 3
  30 #define APM_BATTERY_STATUS_UNKNOWN 0xFF
  31
  32 #define APM_BATTERY_LIFE_UNKNOWN 0xFFFF
  33 #define APM_BATTERY_LIFE_MINUTES 0x8000
  34 #define APM_BATTERY_LIFE_VALUE_MASK 0x7FFF
  35
  36 /*
  37  * This structure gets filled in by the machine specific 'get_power_status'
  38  * implementation.  Any fields which are not set default to a safe value.
  39  */
  40 struct apm_power_info {
  41         unsigned char   ac_line_status;
  42         unsigned char   battery_status;
  43         unsigned char   battery_flag;
  44         unsigned char   battery_life;
  45         int             time;
  46         int             units;
  47 };
  48
  49 /*
  50  * This allows machines to provide their own "apm get power status" function.
  51  */
  52 extern void (*apm_get_power_status)(struct apm_power_info *);
  53 #endif
  54
  55
  56 #endif